Báo cáo khoa học: "Exploring the Sense Distributions of Homographs" docx

Tài liệu Báo cáo khoa học: "Exploring the Use of Linguistic Features in Domain and Genre Classification" potx

... for the LPE experiments because of the ceiling effect and the small size of the complete data set, therefore, we did not rerun the corresponding experiments. Furthermore, the number of codebook ... the other way around. Composition of feature vectors: Another lesson of Tab. 3 is that the effect of the composition of the feature vectors can vary depend- ing both on the task and on the ... from the domains of law and economy contain more VAINF than others. The potential meaning of common punctuation marks is quite clear: the longer the sentences an author constructs, the fewer...

Tài liệu Báo cáo khoa học: Understanding the binding properties of an unusual metal-binding protein ) a study of bacterial frataxin pdf

... resonanceswithout the concomitant appearance of other signalsin other parts of the spectrum. This result could be aconsequence of the paramagnetic properties of Fe(II),or it might arise from the presence of ... Fe3+Addition of Fe2+induced the displacement of severalresonances in the [1H,15N]-HSQC NMR spectrum of CyaY, but the most striking consequence of the addi-tion was the total disappearance of speciﬁc ... from the other. Disappearance of someresonances without the obvious appearance of new sig-nals suggests the presence of an intermediate rate-exchanging equilibrium between the resonances of the metal-bound...

Tài liệu Báo cáo khoa học: Probing the molecular determinants of aniline dioxygenase substrate speciﬁcity by saturation mutagenesis docx

... [14]. The lack of characterization of the structural determinant of the substrate specificity of the AtdA enzyme has thus limited its development as abiocatalyst for the bioremediation of a wide ... reported which of the five genes control the substrate specificity of the AtdA enzyme. The objective of this study was to identify and probe the residues determining the activity as well as the sub-strate ... may indicate that the steric limitation of the enzyme’s binding pocket takes place in the areabetween the ortho and para positions of the aromaticsubstrate.On the basis of these results, aniline...

Tài liệu Báo cáo khoa học: "Learning the Latent Semantics of a Concept from its Deﬁnition" pptx

... N(j) be the set of neigh-bor senses of sense j. then new latent vector is:Qnew·,j= Q·,j+k∈N (j)kQ·,k(2) Inner product (in-stead of cosine similarity) of the two resulting sense vectors ... WMF on the deﬁnitions corpus, the similarity of two senses sjand skcan be computedby the inner product of Q·,jand Q·,k.2.3 A Nuanced Sense Similarity: wmfvecWe can further use the features ... structure. For example, the jcn similarity measure (Jiang and Conrath, 1997)computes the sense pair similarity score based on the information content of three senses: the two sensesand their least common...

Tài liệu Báo cáo khoa học: Mapping the functional domains of human transcobalamin using monoclonal antibodies pptx

... spanned either the second quarter of the TC sequence GQLA…TAAM(103–198) or the C-ter-minal peptide LEPA…LVSW(316–427). Proteolytic fragments of TC and the synthetic peptides were used to further ... [14] despite the absence of S-S bonds and the low number of conserved residuesin this part of the sequence. Only later did the largeN-terminal unit become involved in the binding of Cbl [13,14]. ... interaction in this casecould be due to either loss of the epitope or an artifact of the blotting procedure. The location of peptide10–11 along the primary structure of TC is shown inFig. 4A as sequence...

Tài liệu Báo cáo khoa học: Unraveling the catalytic mechanism of lactoperoxidase and myeloperoxidase A reﬂection on some controversial features Elena Ghibaudi and Enzo Laurenti docx

... of these questions, we will proposea new hypothesis that describes an integrated vision of the catalytic mechanism of MPO and LPO.A brief survey of the absorption features of MPO, LPO and their ... oxidize them [19]. On the other hand, this factdoes not represent proof of the presence of one or twooxidizing equivalents on the decay product of Cpd I. The EPR spectrum of a spin-trapped radical ... pres-ence of H2O2alone, a non-physiological condition. Webelieve that the absence of direct evidence of the radical in the presence of cosubstrates limits the validity of extrapo-lating the model...

Tài liệu Báo cáo khoa học: "Understanding the Semantic Structure of Noun Phrase Queries" pptx

... bestIM:Type full timeIM:Title the godfatherOther the, in, that Other the, in, that Other the, in, thatTable 3: Label sets and their respective query segment examples for the intent class Movie, Job ... goal of this work is to identify the semantic labels of IMs,i.e., the attribute names they implicitly refer to. Weuse Acto denote the set of IM semantic labels for the intent class c.OtherAdditionally, ... wonderland 2010 cast”: (1) the Title of the movie is “alice in wonderland”; and(2) the Year of the movie is “2010”. Interestingly, the user does not explicitly specify the attributenames, i.e.,...

Tài liệu Báo cáo khoa học: "Identifying the Semantic Orientation of Foreign Words" pdf

... engine. The number of hits for positive seeds, negative seeds,positives seeds near the given word, and negativeseeds near the given word are used to estimate the association of the given word to the ... polarity,hitsw,posis the number of hits returned by a com-mercial search engine when the search query is the given word and the disjunction of all positive seedwords. hitsposis the number of hits when ... al.,2010), where the attitude of participants in a discus-sion is inferred using the text they exchange.Due to its importance, several researchers haveaddressed the problem of identifying the semanticorientation...

Tài liệu Báo cáo khoa học: Mapping the functional domain of the prion protein docx

... syndrome[6]. All of these disease are linked together because of the deposition of an abnormal, protease-resistant isoform of the prion protein in brains of individuals with these diseases.This ... PrP.Production of deletion mutants of PrPOn the basis of the results with antibodies, a series of PrPmutants were made to assess whether deletions of certaindomains of the protein decrease the SOD-like ... [31]. The relevance of the ﬁndings presented here are therefore quite important indetermining the changes that PrP undergoes during the course of prion disease and the possible role of the loss of its...

Tài liệu Báo cáo khoa học: "ON THE AUTOMATIC TRANSFORMATION OF CLASS MEMBERSHIP CRITERIA" docx

... checks whether required components of the definition of the class are also present in the description of the instance. This also permits easy representation of modifications to the definition, ... irrelevant to the matching process. The transformation is performed by means of a process of ~ inmtRntlat~nn OF the deflnition the translation of the de/initlon f~'om a set of criteria ... characterization is being sought, or the modification of the criteria by means of which a characterization is found. The choice between these two responses (or of the way in which they are combined) appears...

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